Predicted to enable L-ascorbic acid binding activity; iron ion binding activity; and procollagen-proline 4-dioxygenase activity. Predicted to be located in endoplasmic reticulum. Is an ortholog of C. elegans dpy-18. In C. elegans, dpy-18 is involved in several processes, including cuticle development involved in collagen and cuticulin-based cuticle molting cycle; embryo development; and embryonic body morphogenesis.